7771 Angler Ambush is an Aqua Raiders set released in October2007. It contains an underwater scooter, a small rock formation, an angler fish, and two Aqua Raiders.
A lever mechanism allows to blow away a piece of the rock formation to reveal four hidden gold coins.
The scooter transports two harpoon guns and flippers for its pilot. The other minifigure is equipped with a jackhammer.
The two large lower teeth of the angler fish glow in the dark, but ironically, its lure does not.
The prototype has a green angler instead of a blue one, a larger sub with robotic arms, and a treasure chest.
This is a description taken from LEGO.com. Do not modify it.
Beware the massive anglerfish!
What's that light shining in the darkness of the ocean depths? Is it hidden treasure? No, it's a giant anglerfish -- and it's hungry! Can the divers drill out the ancient coins hidden in the rock and escape the creature's gaping jaws and glowing fangs? It'll take all the speed of their mini-sub to succeed!